diff options
Diffstat (limited to 'drivers/scsi/isci/host.h')
| -rw-r--r-- | drivers/scsi/isci/host.h | 124 |
1 files changed, 37 insertions, 87 deletions
diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h index adbad69d106..9ab58e0540e 100644 --- a/drivers/scsi/isci/host.h +++ b/drivers/scsi/isci/host.h @@ -55,6 +55,7 @@ #ifndef _SCI_HOST_H_ #define _SCI_HOST_H_ +#include <scsi/sas_ata.h> #include "remote_device.h" #include "phy.h" #include "isci.h" @@ -108,6 +109,8 @@ struct sci_port_configuration_agent; typedef void (*port_config_fn)(struct isci_host *, struct sci_port_configuration_agent *, struct isci_port *, struct isci_phy *); +bool is_port_config_apc(struct isci_host *ihost); +bool is_controller_start_complete(struct isci_host *ihost); struct sci_port_configuration_agent { u16 phy_configured_mask; @@ -157,13 +160,17 @@ struct isci_host { struct sci_power_control power_control; u8 io_request_sequence[SCI_MAX_IO_REQUESTS]; struct scu_task_context *task_context_table; - dma_addr_t task_context_dma; + dma_addr_t tc_dma; union scu_remote_node_context *remote_node_context_table; + dma_addr_t rnc_dma; u32 *completion_queue; + dma_addr_t cq_dma; u32 completion_queue_get; u32 logical_port_entries; u32 remote_node_entries; u32 task_context_entries; + void *ufi_buf; + dma_addr_t ufi_dma; struct sci_unsolicited_frame_control uf_control; /* phy startup */ @@ -190,17 +197,13 @@ struct isci_host { struct asd_sas_port sas_ports[SCI_MAX_PORTS]; struct sas_ha_struct sas_ha; - spinlock_t state_lock; struct pci_dev *pdev; - enum isci_status status; #define IHOST_START_PENDING 0 #define IHOST_STOP_PENDING 1 + #define IHOST_IRQ_ENABLED 2 unsigned long flags; wait_queue_head_t eventq; - struct Scsi_Host *shost; struct tasklet_struct completion_tasklet; - struct list_head requests_to_complete; - struct list_head requests_to_errorback; spinlock_t scic_lock; struct isci_request *reqs[SCI_MAX_IO_REQUESTS]; struct isci_remote_device devices[SCI_MAX_REMOTE_DEVICES]; @@ -274,13 +277,6 @@ enum sci_controller_states { SCIC_STOPPING, /** - * This state indicates that the controller has successfully been stopped. - * In this state no new IO operations are permitted. - * This state is entered from the STOPPING state. - */ - SCIC_STOPPED, - - /** * This state indicates that the controller could not successfully be * initialized. In this state no new IO operations are permitted. * This state is entered from the INITIALIZING state. @@ -309,32 +305,16 @@ static inline struct isci_pci_info *to_pci_info(struct pci_dev *pdev) return pci_get_drvdata(pdev); } +static inline struct Scsi_Host *to_shost(struct isci_host *ihost) +{ + return ihost->sas_ha.core.shost; +} + #define for_each_isci_host(id, ihost, pdev) \ for (id = 0, ihost = to_pci_info(pdev)->hosts[id]; \ id < ARRAY_SIZE(to_pci_info(pdev)->hosts) && ihost; \ ihost = to_pci_info(pdev)->hosts[++id]) -static inline enum isci_status isci_host_get_state(struct isci_host *isci_host) -{ - return isci_host->status; -} - -static inline void isci_host_change_state(struct isci_host *isci_host, - enum isci_status status) -{ - unsigned long flags; - - dev_dbg(&isci_host->pdev->dev, - "%s: isci_host = %p, state = 0x%x", - __func__, - isci_host, - status); - spin_lock_irqsave(&isci_host->state_lock, flags); - isci_host->status = status; - spin_unlock_irqrestore(&isci_host->state_lock, flags); - -} - static inline void wait_for_start(struct isci_host *ihost) { wait_event(ihost->eventq, !test_bit(IHOST_START_PENDING, &ihost->flags)); @@ -360,6 +340,11 @@ static inline struct isci_host *dev_to_ihost(struct domain_device *dev) return dev->port->ha->lldd_ha; } +static inline struct isci_host *idev_to_ihost(struct isci_remote_device *idev) +{ + return dev_to_ihost(idev->domain_dev); +} + /* we always use protocol engine group zero */ #define ISCI_PEG 0 @@ -378,8 +363,7 @@ static inline int sci_remote_device_node_count(struct isci_remote_device *idev) { struct domain_device *dev = idev->domain_dev; - if ((dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) && - !idev->is_direct_attached) + if (dev_is_sata(dev) && dev->parent) return SCU_STP_REMOTE_NODE_COUNT; return SCU_SSP_REMOTE_NODE_COUNT; } @@ -475,36 +459,17 @@ void sci_controller_free_remote_node_context( struct isci_remote_device *idev, u16 node_id); -struct isci_request *sci_request_by_tag(struct isci_host *ihost, - u16 io_tag); - -void sci_controller_power_control_queue_insert( - struct isci_host *ihost, - struct isci_phy *iphy); - -void sci_controller_power_control_queue_remove( - struct isci_host *ihost, - struct isci_phy *iphy); - -void sci_controller_link_up( - struct isci_host *ihost, - struct isci_port *iport, - struct isci_phy *iphy); - -void sci_controller_link_down( - struct isci_host *ihost, - struct isci_port *iport, - struct isci_phy *iphy); - -void sci_controller_remote_device_stopped( - struct isci_host *ihost, - struct isci_remote_device *idev); - -void sci_controller_copy_task_context( - struct isci_host *ihost, - struct isci_request *ireq); - -void sci_controller_register_setup(struct isci_host *ihost); +struct isci_request *sci_request_by_tag(struct isci_host *ihost, u16 io_tag); +void sci_controller_power_control_queue_insert(struct isci_host *ihost, + struct isci_phy *iphy); +void sci_controller_power_control_queue_remove(struct isci_host *ihost, + struct isci_phy *iphy); +void sci_controller_link_up(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy); +void sci_controller_link_down(struct isci_host *ihost, struct isci_port *iport, + struct isci_phy *iphy); +void sci_controller_remote_device_stopped(struct isci_host *ihost, + struct isci_remote_device *idev); enum sci_status sci_controller_continue_io(struct isci_request *ireq); int isci_host_scan_finished(struct Scsi_Host *, unsigned long); @@ -512,29 +477,14 @@ void isci_host_scan_start(struct Scsi_Host *); u16 isci_alloc_tag(struct isci_host *ihost); enum sci_status isci_free_tag(struct isci_host *ihost, u16 io_tag); void isci_tci_free(struct isci_host *ihost, u16 tci); +void ireq_done(struct isci_host *ihost, struct isci_request *ireq, struct sas_task *task); int isci_host_init(struct isci_host *); - -void isci_host_init_controller_names( - struct isci_host *isci_host, - unsigned int controller_idx); - -void isci_host_deinit( - struct isci_host *); - -void isci_host_port_link_up( - struct isci_host *, - struct isci_port *, - struct isci_phy *); -int isci_host_dev_found(struct domain_device *); - -void isci_host_remote_device_start_complete( - struct isci_host *, - struct isci_remote_device *, - enum sci_status); - -void sci_controller_disable_interrupts( - struct isci_host *ihost); +void isci_host_completion_routine(unsigned long data); +void isci_host_deinit(struct isci_host *); +void sci_controller_disable_interrupts(struct isci_host *ihost); +bool sci_controller_has_remote_devices_stopping(struct isci_host *ihost); +void sci_controller_transition_to_ready(struct isci_host *ihost, enum sci_status status); enum sci_status sci_controller_start_io( struct isci_host *ihost, |